Bill is the suspect if you read upside down the numbers it says: "Bill is boss. He sells oil."
She shot her husband with a camera and then developed the photo.
Those who understand binary, and those who don't. In Binary 10 is equal to the number two in base ten.
If the man shot himself while he was recording, how did he rewind the cassette tape?
None of the windows were left open. If the person jumped, who closed the window?